diff options
| author | Venkatesh Yadav Abbarapu <venkatesh.abbarapu@amd.com> | 2024-09-26 10:25:05 +0530 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2024-10-09 09:01:54 -0600 |
| commit | 34da258bb0465de4bf44dc8949a9536cc06bf725 (patch) | |
| tree | 7aa92b21cd25503e3ad8ed496a38a3ef080546c1 /drivers/spi/mpc8xxx_spi.c | |
| parent | c480ec2c45b221b2044c6268c9773e78fa47f305 (diff) | |
spi: spi-uclass: Read chipselect and restrict capabilities
Read chipselect properties from DT which are populated using 'reg'
property and save it in plat->cs[] array for later use.
Also read multi chipselect capability which is used for
parallel-memories and return errors if they are passed on using DT but
driver is not capable of handling it.
Signed-off-by: Ashok Reddy Soma <ashok.reddy.soma@amd.com>
Signed-off-by: Venkatesh Yadav Abbarapu <venkatesh.abbarapu@amd.com>
Diffstat (limited to 'drivers/spi/mpc8xxx_spi.c')
| -rw-r--r-- | drivers/spi/mpc8xxx_spi.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/spi/mpc8xxx_spi.c b/drivers/spi/mpc8xxx_spi.c index cd624f4d6f0..b34e1c2129c 100644 --- a/drivers/spi/mpc8xxx_spi.c +++ b/drivers/spi/mpc8xxx_spi.c @@ -113,7 +113,7 @@ static void mpc8xxx_spi_cs_activate(struct udevice *dev) struct mpc8xxx_priv *priv = dev_get_priv(dev->parent); struct dm_spi_slave_plat *plat = dev_get_parent_plat(dev); - dm_gpio_set_value(&priv->gpios[plat->cs], 1); + dm_gpio_set_value(&priv->gpios[plat->cs[0]], 1); } static void mpc8xxx_spi_cs_deactivate(struct udevice *dev) @@ -121,7 +121,7 @@ static void mpc8xxx_spi_cs_deactivate(struct udevice *dev) struct mpc8xxx_priv *priv = dev_get_priv(dev->parent); struct dm_spi_slave_plat *plat = dev_get_parent_plat(dev); - dm_gpio_set_value(&priv->gpios[plat->cs], 0); + dm_gpio_set_value(&priv->gpios[plat->cs[0]], 0); } static int mpc8xxx_spi_xfer(struct udevice *dev, uint bitlen, @@ -137,10 +137,10 @@ static int mpc8xxx_spi_xfer(struct udevice *dev, uint bitlen, ulong type = dev_get_driver_data(bus); debug("%s: slave %s:%u dout %08X din %08X bitlen %u\n", __func__, - bus->name, plat->cs, (uint)dout, (uint)din, bitlen); - if (plat->cs >= priv->cs_count) { + bus->name, plat->cs[0], (uint)dout, (uint)din, bitlen); + if (plat->cs[0] >= priv->cs_count) { dev_err(dev, "chip select index %d too large (cs_count=%d)\n", - plat->cs, priv->cs_count); + plat->cs[0], priv->cs_count); return -EINVAL; } if (bitlen % 8) { |